Operating cost estimate

The following are capital and operating cost estimates for the process ... 

Two advantages of this approach would be the minimized capital and operating costs, along with minimal space requirements. The best process (for iron removal) would probably be chemical precipitation with lime through a rapid mix, flocculation, and DAF step. DAF size requirements would be in the range of a 300- to 350-ft2 unit. Total costs for operation and maintenance of the preliminary treatment facility using an interest rate of 10% over 10 years are estimated at 0.44/1000 gal. A summary of the capital and operating cost estimates is presented in Table 8.2. 

Assuming a 480-ton/day treatment rate, the estimated life-cycle cost for a full-scale treatment is approximately 160 per ton of dry soil processed (D13753L, p. 2). This estimate includes fixed capital investment and operating costs based on a 70% utilization factor for plant operations over a period of 17 years. Operating cost estimates (included iu the life-cycle cost estimate) include an inflation rate of 5% per year (D13753L, pp. 32-34). 

TABLE 1 Operating Cost" Estimate for a 110-Ton/Day Mercury Removal/Recovery Process Mixed-Waste Facility... 

As part of the U.S. Department of Energy (DOE) Heavy Metals in Contaminated Soils Treatability Project, total operating cost for the Campbell centrifugal jig is 1.07 per ton (1995 dollars). Capital costs to lease the centrifugal jig are estimated at 16,000 per month or 0.64 per ton. Costs considered in this operating cost estimate include the following ... 

The price of the coal delivered to the plant, and the basis for all of the cost elements of the operating cost estimate. 

The capital equipment costs for the process are shown in Table 5 for the lithium process. These estimates, as well as the operating cost estimates, were obtained using standard chemical engineering practice (Ulrich, 1984). The operating cost assumptions are shown in Table 6. 

Table XXV. Capital Equipment and Operating Cost Estimate for Dyebath Reuse Applied to Polyester Package Dyeing...

A detailed breakdown of the capital and operating costs estimated for the three cases is shown in Table I. The analysis just presented is for illustration only, and the relative costs for any specific application require further evaluation. 

Methods and Accuracy. Die estimates presented here are "order of magnitude", with a possible accuracy of 4/ 50%. H6 oontingisxy has been included in the cepital and operating cost estimates. 

Table VI. Annual Operating Cost Estimate ( 000) (17.7 tons Sodium Carbonate/hr, 7000 hr/yr)...

The rules of thumb refer to capital cost estimation, operating cost estimation, financial attractiveness and financial reports. 

Having obtained forecasts of potential market share and price, the annual cash flow position for a selected plant size can be calculated using the capital estimate and operating cost estimates prepared from the literature or research data. The cash flows can then be discounted at the cost of capital to determine the NPV and the DCF rate can be estimated. The NPV and DCF for different plant scales can be calculated to determine the optimum size of plant and the competitive processes compared over expected project life. 

Estimates for operating costs for both thermal and electrolytic refining are given in Table 17.12 on the same basis as used for smelting operating cost estimates given above. 

APPROACH The project team conducted literature and vendor surveys to gather information on the technology, environmental performance, and utility applications of coal gasification-based systems. They compiled this information into a guidebook and published it in three-ring-binder form to facilitate timely updates as new information becomes available. (Economic analysis of specific applications and capital and operating cost estimates will be published separately.)... 

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